Vulnerability Description
gcc 4.3.x does not generate a cld instruction while compiling functions used for string manipulation such as memcpy and memmove on x86 and i386, which can prevent the direction flag (DF) from being reset in violation of ABI conventions and cause data to be copied in the wrong direction during signal handling in the Linux kernel, which might allow context-dependent attackers to trigger memory corruption. NOTE: this issue was originally reported for CPU consumption in SBCL.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Gcc | 4.3 |
Related Weaknesses (CWE)
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469058
- http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00417.html
- http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00428.html
- http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00432.html
- http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00499.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2008-06/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00002.html
- http://lists.vmware.com/pipermail/security-announce/2008/000023.html
- http://lkml.org/lkml/2008/3/5/207Exploit
- http://lwn.net/Articles/272048/#Comments
- http://marc.info/?l=git-commits-head&m=120492000901739&w=2
- http://rhn.redhat.com/errata/RHSA-2008-0508.html
- http://secunia.com/advisories/30110
FAQ
What is CVE-2008-1367?
CVE-2008-1367 is a vulnerability with a CVSS score of 7.5 (HIGH). gcc 4.3.x does not generate a cld instruction while compiling functions used for string manipulation such as memcpy and memmove on x86 and i386, which can prevent the direction flag (DF) from being re...
How severe is CVE-2008-1367?
CVE-2008-1367 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2008-1367?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Gcc.